English
Related papers

Related papers: Type IV Radio Bursts and Associated Active Regions…

200 papers

Simultaneous radio and extreme ultraviolet (EUV)/white-light imaging data are examined for a solar type II radio burst occurring on 2010 March 18 to deduce its source location. Using a bow-shock model, we reconstruct the 3-dimensional EUV…

Space Physics · Physics 2015-06-19 Yao Chen , Guohui Du , Li Feng , Shiwei Feng , Xiangliang Kong , Fan Guo , Bing Wang , Gang Li

Solar type III radio bursts are excited by electron beams propagating outward from the Sun. The flux of type III radio burst has a time profile of rising and decay phase at a given frequency, which has been actively studied since 1970s.…

Solar and Stellar Astrophysics · Physics 2019-11-13 PeiJin Zhang , SiJie Yu , Eduard Kontar , ChuanBing Wang

Type III solar radio storms, observed at frequencies below approximately 16 MHz by space borne radio experiments, correspond to the quasi-continuous, bursty emission of electron beams onto open field lines above active regions. The…

Solar and Stellar Astrophysics · Physics 2015-05-14 J. P. Eastwood , M. S. Wheatland , H. S. Hudson , S. Krucker , S. D. Bale , M. Maksimovic , K. Goetz , J. -L. Bougeret

Solar radio bursts (SRBs) are intense emissions observed in radio wavelengths most frequently during solar transients, such as coronal mass ejections (CMEs) and flares. SRBs are direct signatures of accelerated electrons in the solar…

The Sun produces the most powerful explosions in the solar system, solar flares, that can also be accompanied by large eruptions of magnetised plasma, coronal mass ejections (CMEs). These processes can accelerate electron beams up to…

Solar and Stellar Astrophysics · Physics 2023-07-05 D. E. Morosan , J. Pomoell , A. Kumari , E. K. J. Kilpua , R. Vainio

The Sun is an active star that often produces numerous bursts of electromagnetic radiation at radio wavelengths. Low frequency radio bursts have recently been brought back to light with the advancement of novel radio interferometers.…

Solar energetic particles (SEPs) are an important product of solar activity. They are connected to solar active regions and flares, coronal mass ejections (CMEs), EUV waves, shocks, Type II and III radio emissions, and X-ray bursts. These…

We analyses occurrence of DH type II solar radio bursts spanning over solar cycles 23-25 during which a total of 590 DH type II bursts are reported with confirmed 568 and 462 cases of associated CME and flares, respectively. We find…

Solar and Stellar Astrophysics · Physics 2024-09-05 Bhuwan Joshi , Binal D. Patel , Kyung-Suk Cho , Rok-Soon Kim

The Sun is an active source of radio emission which is often associated with energetic phenomena such as solar flares and coronal mass ejections (CMEs). At low radio frequencies (<100 MHz), the Sun has not been imaged extensively because of…

We report on a multi-wavelength analysis of the 26 January 2014 solar eruption involving a coronal mass ejection (CME) and a Type-II radio burst, performed by combining data from various space-and ground-based instruments. An increasing…

Auroral radio emissions in planetary magnetospheres typically feature highly polarized, intense radio bursts, usually attributed to electron cyclotron maser (ECM) emission from energetic electrons in the planetary polar region that features…

Solar and Stellar Astrophysics · Physics 2023-10-03 Sijie Yu , Bin Chen , Rohit Sharma , Timothy Bastian , Surajit Mondal , Dale Gary , Yingjie Luo , Marina Battaglia

We traced the origin of very long-periodic pulsations (VLPs) in type-I burst chains on 2024 February 14. Seven successive and repetitive pulsation structures appeared in radio dynamic spectra in the metric waveband, which were…

Solar and Stellar Astrophysics · Physics 2026-04-21 Dong Li , Lei Lu , Jingye Yan , Xinhua Zhao , Bing Wang , Chengming Tan , Jianping Li , Zongjun Ning

Metric type II solar radio bursts and solar energetic particles (SEPs) are both associated with shock fronts driven by coronal mass ejections (CMEs) in the solar corona. Recent studies of ground level enhancements (GLEs), regular large…

Images from the Solar Dynamics Observatory (SDO) at 211A are used to identify the solar source of the type III radio bursts seen in WIND/WAVES dynamic spectra. We analyse a 2.5 hour period during which six strong bursts are seen. The radio…

Solar and Stellar Astrophysics · Physics 2015-05-28 D. E. Innes , R. H. Cameron , S. K. Solanki

Sun-as-a-star coronal plasma composition, derived from full-Sun spectra, and the F10.7 radio flux (2.8 GHz) have been shown to be highly correlated (r = 0.88) during solar cycle 24. However, this correlation becomes nonlinear during…

This study aims to investigate the ambiguous source and the underlying physical processes of the solar type III radio bursts that occurred on April 3, 2019, through the utilization of multiwavelength observations from the LOFAR radio…

Solar and Stellar Astrophysics · Physics 2023-12-20 Mohamed Nedal , Kamen Kozarev , Peijin Zhang , Pietro Zucca

Radio U-bursts and J-bursts are signatures of electron beams propagating along magnetic loops confined to the corona. The more commonly observed type III radio bursts are signatures of electron beams propagating along magnetic loops that…

Solar and Stellar Astrophysics · Physics 2017-11-01 Hamish A. S. Reid , Eduard P. Kontar

We investigate the type III radio bursts and X-ray signatures of accelerated electrons in a well observed solar flare in order to find the spatial properties of the acceleration region. Combining simultaneous RHESSI hard X-ray flare data…

Solar and Stellar Astrophysics · Physics 2015-05-27 H. A. S. Reid , N. Vilmer , E. P. Kontar

We study the association of solar flares with coronal mass ejections (CMEs) during the deep, extended solar minimum of 2007-2009, using extreme-ultraviolet (EUV) and white-light (coronagraph) images from the {\it Solar Terrestrial Relations…

Solar and Stellar Astrophysics · Physics 2015-06-16 N. V. Nitta , M. J. Aschwanden , S. L. Freeland , J. R. Lemen , J. -P. Wülser , D. M. Zarro

Recent SECCHI COR2 observations on board STEREO-A spacecraft have detected density structures at a distance of 2.5--15~R propagating with periodicity of about 90~minutes. The observations show that the density structures probably formed in…

Solar and Stellar Astrophysics · Physics 2017-04-26 O. S. Pylaev , T. V. Zaqarashvili , A. I. Brazhenko , V. N. Melnik , A. Hanslmeier , M. Panchenko
‹ Prev 1 4 5 6 7 8 10 Next ›